X90 mobile modules
X90 mobile system User's manual V 1.20 - Translation of the original manual
185
5.4.1.5.9 Frequency band configuration registers
5.4.1.5.9.1 HighFrequencyConfig
Name:
HighFrequencyConfig01
Register for defining the envelope signal high-pass and characteristic values
"PeakHighFrequency" on page 171
and
"RmsHighFrequency" on page 173
. This setting applies to the entire module.
Data type
Values
UINT
See the bit structure.
Bit structure:
Bit
Description
Values
Information
0
2000 Hz
1
1000 Hz (bus controller default setting)
2
500 Hz
0 - 3
High-pass configuration for the entire module
3 to 15
Invalid
4 - 15
Reserved
-
5.4.1.5.9.2 HighFrequencyConfigRead
Name:
HighFrequencyConfig01Read
Register for defining the envelope signal high-pass and characteristic values
"PeakHighFrequency" on page 171
and
"RmsHighFrequency" on page 173
. This setting applies to the entire module.
Data type
Values
UINT
0 to 65,535
5.4.1.5.9.3 MaxFrequencyEnvelope
Name:
MaxFrequencyEnvelope01
Registers for setting the maximum frequency of the channel. Reducing the maximum frequency allows the fre-
quency resolution in the spectrum to be increased.
Data type
Values
UINT
See the bit structure.
Bit structure:
Bit
Description
Value
Information
0
2000 Hz (bus controller default setting)
1
1000 Hz
2
500 Hz
3
200 Hz
0 - 3
Maximum frequency for channel 1
4 to 15
Invalid
4 - 7
Maximum frequency for channel 2
x
For possible values, see channel 1.
8 - 11
Maximum frequency for channel 3
x
For possible values, see channel 1.
12 - 15
Maximum frequency for channel 4
x
For possible values, see channel 1.
Overview of the maximum frequency of the envelope signal
Maximum frequency
Sampling frequency Duration of measure-
ment
Frequency resolution in the frequency spectrum
2000 Hz
5156 Hz
1.5888 s
0.6294 Hz
1000 Hz
2578 Hz
3.1775 s
0.3147 Hz
500 Hz
1289 Hz
6.3550 s
0.1574 Hz
200 Hz
516 Hz
15.8875 s
0.0629 Hz
Important information for configuring the maximum frequency
•
The frequency range must be larger than the damage frequency but should otherwise be kept as small as
possible in order to achieve a good resolution.
•
When using broadband values (e.g. PeakRaw), only the largest peak value is returned during a measure-
ment. Using a longer measurement time at a lower frequency can lead to the measured value being over-
looked in some applications.
•
The maximum frequency influences the size of the sampling rate and can be configured using register
"AnalogInput" on page 165
.
